| Henry de Percy & Idonea de Clifford | |
| Husband | Wife |
| Henry de Percy | Idonea de Clifford |
|
b: 6 Feb 1300-6 Feb 1301 Leconfield, Yorkshire, England |
b: Abt 1300 Appleby, Westmoreland, England d: 24 Aug 1365 |
| Marriage: in 1314 in Yorkshire, England. | |
| Parents | |
| Henry de Percy (1273 - 1314) | Robert de Clifford (1274 - 1314) |
| Baroness Arundel / (1275 - 1328) | Maud de Clare (1276 - 1327) |
| Grand Parents | |
| Sir Henry de Percy (1235 - 1272) | Roger de Clifford (1243 - 1282) |
| De Warenne / (1244 - 1282) | Veteri-Ponti / (1254 - ) |
| John FitzAlan II (1246 - 1272) | Thomas de Clare (1248 - 1288) |
| Isabella de Mortimer (1248 - Aug 1274) | Julian Fitzmaurice (1249 - 1309) |
| Children (Family Detail) | |
| Maud de Percy | - b: Abt 1335 Warkworth Castle, Alnwick, Northumberland, England |